DENND1B and Alzheimer disease: miR‐143 potentially targets DENND1B.15 Aside from hybridization‐based microarray, Ichihara et al used PCR array to quantitate the expression of 88 miRNAs in three AD skin samples versus three normal skin samples, in which overexpression (fold‐change > 16) of miR‐520g, miR‐21, miR‐10b, miR‐223, and miR‐196a in AD lesions was demonstrated.16